function taskNavLevel(l1,l2,l3,l4) {
	if(l2) {
		//we have a secondary click, which implies we also have a primary nav selected
		//we may or may not have l3 or l4 though, so they are handled separately below
		$("#division-menu").load(config.SFIABDIRECTORY+"/nav.php?level=1&id="+l1,null,function() {
			$("#division-menu").show();

//			$("#tertiarymenu_accordion").accordion("destroy");
			$("#topic-menu").load(config.SFIABDIRECTORY+"/nav.php?level=2&id="+l2,null,function() {
//				$("#tertiarymenu_accordion").accordion({clearStyle: true, collapsible: true, active: false}); //"option", "collapsible", true);
				$("#topic-menu").show();

				$(".primarynav-selected").removeClass("primarynav-selected");
				$("#primary_nav_"+l1).addClass("primarynav-selected");

				$(".secondarynav-selected").removeClass("secondarynav-selected");
				$("#secondary_nav_"+l2).addClass("secondarynav-selected");

				//if we have a 3rd level nav, open up the accordion to the appropriate place
				if(l3) {
//					$("#tertiarymenu_accordion").accordion("activate",$("#tertiary_nav_"+l3));
				}
				//if we have a 4th level nav, set the selected class on the appropriate item in the list
				if(l4) {
					$(".tertiarylinknav-selected").removeClass("tertiarylinknav-selected");
					$("#tertiarylink_nav_"+l4).addClass("tertiarylinknav-selected");
				}
			});
		});
	}
	else {
		//only the primary link clicked, so show the secondary, and thats it.
		$("#division-menu").load(config.SFIABDIRECTORY+"/nav.php?level=1&id="+l1,null,function() {

			$(".primarynav-selected").removeClass("primarynav-selected");
			$("#primary_nav_"+l1).addClass("primarynav-selected");

			//show the secondary 
			$("#division-menu").show();
			//and hide the tertiary
//			$("#topic-menu").hide();
		});
	}

}